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Finding the Fourth Proportional to 23,331.68, 32,205.84 and 19,815.20

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Solution

The fourth proportional to 23,331.68, 32,205.84 and 19,815.20 is: 27,351.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,331.68 : 32,205.84 = 19,815.20 : x
  2. Step 2: Convert to fraction form
    23,331.68/32,205.84 = 19,815.20/x
  3. Step 3: Cross multiply
    23,331.68x = 32,205.84 × 19,815.20
  4. Step 4: Simplify right side
    23,331.68x = 638,165,160.77
  5. Step 5: Solve for x
    x = 638,165,160.77/23,331.68
  6. Step 6: Final answer
    x = 27,351.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.